The earlier Toy Story employed clay models that were later scanned and digitized, while Cassiopeia used only software to create its visuals.

[2] The planet Ateneia, located in the constellation of Cassiopeia, is attacked by space invaders who begin to drain its vital energy.

A distress signal is sent into outer space by the local astronomer, Liza, and received by four heroes – Chip, Chop, Feel and Thot – who travel across the galaxy to the rescue.

Each has a specific function in their spaceship: Chop is the captain and pilot, Feel and Thot monitor space, and Chip is the gunman, working also as comic relief throughout.

On the way to defeat the evil forces of Shadowseat, the foursome meet Leonardo, a scientist from an undeveloped planet who creates crazy gadgets.